Why are physical activity breaks more effective than a single session of isoenergetic exercise in reducing postprandial glucose? : a systemic review and meta-analysis
Deutscher übersetzter Titel: | Warum sind Aktivitätspausen effektiver als einzelne isoenergetische Trainingseinheiten zur Reduzierung der postprandialen Glukosewerten : ein systematisches Review und Metaanalyse |
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Autor: | Gouldrup, Hannah; Ma, Tongyu |
Erschienen in: | Journal of sports sciences |
Veröffentlicht: | 39 (2021), 2, S. 212-218, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0264-0414, 1466-447X |
DOI: | 10.1080/02640414.2020.1812196 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU202102001362 |
Quelle: | BISp |
Abstract
Previous studies revealed that interrupting sitting time with short, frequent physical activity (PA) breaks were more effective than a single session of isoenergetic exercise in reducing postprandial glucose. However, in those studies, the expected glucose-lowering effects of single-session exercises were diminished or even eliminated by exercise-induced glucose counterregulation as evidenced by the higher glucose levels during or after exercise compared to uninterrupted sitting. This study was aimed to investigate whether glucose counterregulation is a potential explanation of PA breaks being more effective than a single session of isoenergetic exercise in reducing postprandial glucose. We meta-analysed the standardized mean differences (SMD) of glucose incremental area under the curve (iAUC). PA breaks were more effective than single-session exercise in reducing glucose iAUC (5 studies, SMD = −0.581; 95% confidence interval [CI], −0.777 to −0.385; P < 0.0001) when exercise-induced glucose counterregulation occurred. There was no significant difference in glucose iAUC between PA breaks and single-session exercises (2 studies, SMD = 0.302; 95% CI, −0.107 to 0.711; P = 0.451) when glucose counterregulation did not occur. We concluded that the exercise-induced glucose counterregulation was a potential explanation of PA breaks being more effective than a single session of isoenergetic exercise in reducing postprandial glucose responses. (PROSPERO ID: CRD42020175737).